/Engine/Source/Runtime/Engine/Public/HLSLTree/HLSLTreeCommon.h
FExpressionCustomHLSL ( FStringView InDeclarationCode, FStringView InFunctionCode, [TArrayView](API\Runtime\Core\Containers\TArrayView)< [FCustomHLSLInput](API\Runtime\Engine\HLSLTree\FCustomHLSLInput) > InInputs, const [Shader::FStructType](API\Runtime\Engine\Shader\FStructType) * InOutputStructType )